Results 11 to 20 of about 613,182 (293)
Genetic heterogeneity of residual variance - estimation of variance components using double hierarchical generalized linear models [PDF]
Genetics Selection Evolution, 2010 Background The sensitivity to microenvironmental changes varies among animals and may be under genetic control. It is essential to take this element into account when aiming at breeding robust farm animals.
Fikse Freddy +4 more
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On the estimation of genetic parameters via variance components [PDF]
Genetics Selection Evolution, 1983 Summary Variance components have been estimated by three methods using two different but overlapping data sets from a dairy cattle breeding scheme. The methods were H method III, MINQUE and a new method proposed by H in 1980. Two different statistical models of grouping sires were considered.
Schneeberger M, Hagger C, Dempfle L
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Genetic variance components and heritability of multiallelic heterozygosity under inbreeding. [PDF]
Heredity (Edinb), 2016 The maintenance of genetic diversity in fitness-related traits remains a central topic in evolutionary biology, for example, in the context of sexual selection for genetic benefits. Among the solutions that have been proposed is directional sexual selection for heterozygosity. The importance of such selection is highly debated.
Nietlisbach P, Keller LF, Postma E.
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Estimation of genetic variation in residual variance in female and male broiler chickens [PDF]
, 2008 In breeding programs, robustness of animals and uniformity of end product can be improved by exploiting genetic variation in residual variance. Residual variance can be defined as environmental variance after accounting for all identifiable effects.
A. Vereijken +29 more
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The genetic basis of inheritance of plant height in maize [PDF]
Journal of Agricultural Sciences (Belgrade), 2015 The aim of this study, on the grounds of direct and reciprocal diallel crossing of five inbred lines of maize, was to determine: variability, heterosis, combining ability and genetic basis of plant height inheritance. The experiment was based on
Radanović Slavko N. +5 more
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Modeling methylation data as an additional genetic variance component [PDF]
BMC Proceedings, 2018 High-throughput platforms allow the characterization of thousands of previously known methylation sites. These platforms have great potential for investigating the epigenetic effects that are partially responsible for gene expression control. Methylation sites provide a bridge for the investigation of real-time environmental contributions on genomic ...
Marcio Almeida +6 more
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Genetic linkage analysis using lognormal variance components [PDF]
Annals of Human Genetics, 1998 Typically genetic studies of continuous traits such as cholesterol levels or blood pressure assume that interindividual variability follows a normal distribution. Here we develop methods to analyze positively skewed data by assuming a lognormal distribution.
Y, Wan +4 more
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Animals, 2021 It is widely known that the environment influences phenotypic expression and that its effects must be accounted for in genetic evaluation programs. The most used method to account for environmental effects is to add herd and contemporary group to the ...
Beatriz Castro Dias Cuyabano +6 more
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Revista Brasileira de Zootecnia, 2012 The objective of this research was to compare the magnitude of genetic parameters (coefficients of heritability and genetic correlation) as estimated by the Restricted Maximum Likelihood (REML) method and Bayesian Inference, and to estimate the genetic ...
Mariana de Almeida Dornelles +7 more
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The Indian Journal of Agricultural Sciences, 2021 To estimate epistasis and components of genetic variance a study was carried out during 2016 and 2017 at Experimental Research Farm of Department of Vegetable Science, Dr YSP UH & F Nauni, Solan, (HP) and data were recorded for different qualitative and
REENA KUMARI, RAMESH KUMAR, MEENU GUPTA
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